title: The T-cell receptor problem.
mesh_terms: D007111:Immunity, Cellular; D007143:Immunoglobulin Heavy Chains / Q000276:immunology; D007130:Immunoglobulin Idiotypes / Q000032:analysis; D007147:Immunoglobulin Light Chains / Q000276:immunology; D007135:Immunoglobulin Variable Region / Q000276:immunology; D007376:Interleukin-2 / Q000502:physiology; D015848:Interleukin-5; D007519:Isoantigens / Q000032:analysis; D008222:Lymphokines / Q000502:physiology; D008285:Major Histocompatibility Complex; D011948:Receptors, Antigen, T-Cell / Q000276:immunology / Q000378:metabolism; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D007143:Immunoglobulin Heavy Chains; D007130:Immunoglobulin Idiotypes; D007147:Immunoglobulin Light Chains; D007135:Immunoglobulin Variable Region; D007376:Interleukin-2; D015848:Interleukin-5; D007519:Isoantigens; D008222:Lymphokines; D011948:Receptors, Antigen, T-Cell